.TH "BLKDEACTIVATE" "8" "LVM TOOLS #VERSION#" "Red Hat, Inc" "\""
.SH "NAME"
blkdeactivate \- utility to deactivate block devices
.SH SYNOPSIS
.B blkdeactivate
.RI [ options ]
.RI [ device... ]
.sp
.SH DESCRIPTION
blkdeactivate utility deactivates block devices. If a device
is mounted, the utility can unmount it automatically before
trying to deactivate. The utility currently supports
\fIdevice-mapper\fP devices, including \fILVM\fP volumes.
LVM volumes are handled directly using the \fIlvm\fP command.
Other device-mapper based devices are handled using the
\fIdmsetup\fP command.
.SH OPTIONS
.IP "\fB\-h, \-\-help\fP"
Display the help text.
.IP "\fB\-u, \-\-umount\fP"
Unmount a mounted device before trying to deactivate it.
Without this option used, a device that is mounted is not deactivated.
.IP "\fB\-d, \-\-dmoption\fP \fIdm_options\fP"
Comma separated list of device-mapper specific options.
.IP "\fB\-l, \-\-lvmoption\fP \fIlvm_options\fP"
Comma separated list of LVM specific options.
.SH DM_OPTIONS
.IP "\fBretry\fP"
Retry removal several times in case of failure.
.IP "\fBforce\fP"
Force device removal. See \fBdmsetup\fP(8) for more information.
.SH LVM_OPTIONS
.IP "\fBretry\fP"
Retry removal several times in case of failure.
.IP "\fBwholevg\fP"
Deactivate the whole LVM Volume Group when processing a Logical Volume.
Deactivating Volume Group as a whole takes less time than deactivating
each Logical Volume separately.

.SH EXAMPLES
.sp
Deactivate all supported block devices found in the system. If a device
is mounted, skip its deactivation.
.sp
.B blkdeactivate

Deactivate all supported block devices found in the system. If a device
is mounted, unmount it first if possible.
.sp
.B blkdeactivate \-u

Deactivate supplied device together with all its holders. If any of the
devices processed is mounted, unmount it first if possible.
.sp
.B blkdeactivate \-u /dev/vg/lvol0

Deactivate all supported block devices found in the system. Retry deactivation
of device-mapper devices in case the deactivation fails. Deactivate the whole
Volume Group at once when processing an LVM Logical Volume.
.sp
.B blkdeactivate \-u -d retry -l wholevg

Deactivate all supported block devices found in the system. Retry deactivation
of device-mapper devices in case the deactivation fails and force removal.
.sp
.B blkdeactivate -d force,retry

.SH SEE ALSO
.BR lsblk (8)
.BR umount (8)
.BR dmsetup (8)
.BR lvm (8)
